查询词典 distribution function

A new non-linear quadratic programming Bayesian prestack three-terms inversion method is developed; Firstly, this method is based on Bayesian parameter estimation theory, Gaussian distribution is used for likelihood function and modified Cauchy distribution is used for prior distribution; Secondly, covariance matrix is used to describe the degree of correlation between the parameters; rock physics relations are used to constrain the inversion results; at last, this method is transformed into non-linear quadratic programming problem, and inversion results are acquired under several constraints.

本文提出了一种基于非线性二次规划的叠前三参数反演方法。首先基于贝叶斯参数估计理论，假设似然函数服从高斯分布，并使待反演的参数服从于改进的Cauchy分布，从而提高了反演结果的分辨率；其次用协方差矩阵来描述参数间的相关程度，进一步提高了反演结果的稳定性；最后将问题转化为一个非线性二次规划的求解问题，并在多种约束下得到问题的解。

This essay has applied the characteristics of sine functions of Goth function, and according to Kronecher function, it has set up a new function to represent composite number and thus come out with a more accurate function of prime number distribution .

本文根据表哥德巴赫猜想定义了卷和函数，并依照素数分布的函数得到了表哥德巴赫猜想的函数形式。

The research shows that gas concentration shows generally an increasing tendency along the working face airflow direction, from 0.095% to 0.18%, under the effect of gas drainage points, up-and-down changing locally; gas distribution in a transect of working face is unequal, under the effect of gas emission, ventilation and drainage, the gas concentration near coal wall is larger than that near goaf, which is a concave function distribution within a distance of 1876.5 m from the inlet of working face, after greater than 76.5m, which is a decreasing distribution from coal wall to goaf.

研究表明，该工作面瓦斯体积分数沿风流方向总体呈逐渐增加趋势，介于0.095%~0.18%之间，受瓦斯抽放点的影响，局部有起伏变化；工作面横断面瓦斯体积分数分布不均匀，受瓦斯涌出、通风和抽放的影响，靠近煤壁侧瓦斯体积分数要高于采空区侧，在距离进风口约18~76.5 m范围内为凹函数分布，大于76.5 m之后，从煤壁至采空区为单调下降函数分布。

Precipitation distribution;Taiwan;Empirical orthogonal function;Eigenfunction;Temporal distribution;Spatial distribution;Principal component analysis

中文关键字降水分布；台湾；经验正交函数；固有函数；时间分布；空间分布；主分量分析

By performing an inverse Laplace transformation of the stretch exponential function a distribution curve of the diffusivity is obtained which is enables the molecular weight distribution to be extracted.The results show that the width of the molecular weight distribution increasing as the average molecular weight decreases during the degradation process.

结果发现，在降解过程中随着聚合物平均分子量的降低，体系中的分子量分布不断变宽，这一结果与GPC实验结果完全吻合，而且从PFG实验中得到的平均分子量变化趋势和随机断裂方式下的Monte Carlo模拟实验结果十分吻合，据此可以认为聚合物的降解是一个随机断裂的过程。

To address the problem that the distribution feature of time series could not always be easily described due to its diversity, the likelihood function based on the asymmetric Laplace distribution was employed irrespective of the original distribution of the data.

针对时间序列分布特征多样性的问题，不考虑序列本身的分布特征而选择非对称Laplace分布的似然函数对模型进行贝叶斯分位回归分析。

In the dissertation, we do a further study in value distribution theorem and normal families theorem of meromorphic function and get some results by using the Nevanlinna's value distribution and the Ahlfors value distribution.

中文摘要：本论文主要运用Nevanlinna值分布理论以及Ahlfors值分布理论在亚纯函数值分布理论和亚纯函数正规族理论两个领域内做了进一步研究，并且相应的得到了几个结果。

This paper describes the application of a quadratic function, namely : the use of quadratic function for Inequality, discuss other monotone function with the most value, the real roots distribution, series of comprehensive, quadratic function embodied in the high school math widely used.

本文主要介绍二次函数的应用，即：利用二次函数解不等式，讨论其他函数的单调性与最值、实根分布，数列中的应用等综合问题，体现了二次函数在高中数学中的广泛应用。

According to poisson distribution and percolation theory, we construct stock price model, and use characteristic function to prove the convergence of this model, we can get that the characteristic function of the constructed model converge on the characteristic function of the Black-Scholes function.

根据泊松分布和渗流理论构造了股票价格的随机模型，并利用特征函数的性质论证了该模型的收敛性，得出所构造的股票价格随机模型的特征函数收敛到某一个Black-Scholes公式的特征函数的结论。

To fulfil the"setting up market regulations"function, the government usually applies legal means, administrative means and preceptoral means; to fulfil the"adjusting distribution of incomes"function, the government mainly employs legal means and economic means, while occasionally uses political means and administrative means when necessary; to fulfil the "maintaining macro economic stability"function, the government mainly makes use of economic means and administrative means though legal means also can not be ignored; when the"coordinating external economic relations"function is carried out, the role of political means is very prominent, the effect of administrative means is very outstanding while the ability of economic means is relatively limited.

其意义主要表现在：（1）严格科学的绩效评估能够造就高效的政府，高效的政府才更与市场经济相合；（2）严格科学的绩效评估能够将控制政府行为过程的权力客观化，从而有利于提高政府工作的效率；（3）严格科学的绩效评估能够预先设定政府管理经济行为的方向，从而有利于保证政府政策制定的科学性；（4）严格科学的绩效评估体系能够不断纠正政府经济职能执行过程中的偏差，从而有利于保证政策实施过程的正确性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。